Ono is the widow of John Lennon of the Beatles. A Fire Department spokesman said an ambulance was called to Ono's apartment building at 72nd Street and Central Park West in Manhattan around 9 p.m. Friday.

The couple's son, Sean Ono Lennon said in a tweet that his mother was fine and did not suffer a stroke. He said it was "just dehydration/tired" and he thanked the public for their concern.